Journal of Fluids Engineering: Recent submissions
Now showing items 2681-2700 of 9024
-
Measurements in High Void Fraction Bubbly Wakes Created by Ventilated Supercavitation
(The American Society of Mechanical Engineers (ASME), 2013)A study of ventilated supercavitation in the reentrant jet regime has been carried out in the highspeed water tunnel at St. Anthony Falls Laboratory as the hydrodynamics part of an interdisciplinary study on stability and ... -
Experimental and Numerical Evaluation of a Scaled Up Micromixer With Groove Enhanced Division Elements
(The American Society of Mechanical Engineers (ASME), 2013)A novel passive enlarged micromixer has been proposed and experimentally and numerically investigated in this study over 0.5 ≤ Re ≤ 100. Flow visualization was applied to qualitatively assess flow patterns and ... -
Study of Quantitative Numerical Prediction of Cavitation Erosion in Cavitating Flow
(The American Society of Mechanical Engineers (ASME), 2013)Cavitation erosion is a material damage phenomenon caused by the repeated application of impulsive pressure on a material surface induced by bubble collapse, and the establishment of a method by which to numerically predict ... -
Potential Flow Past a Group of Circular Cylinders
(The American Society of Mechanical Engineers (ASME), 1971)The problem of an accelerating potential flow past a group of stationary circular cylinders is considered using the method of images. The problem is formulated so that the number and location ... -
The Optimum Design of a Cavitator for High Speed Axisymmetric Bodies in Partially Cavitating Flows
(The American Society of Mechanical Engineers (ASME), 2013)In this paper, the partially cavitating flow over an axisymmetric projectile is studied in order to obtain the optimum cavitator such that, at a given cavitation number, the total drag coefficient of the projectile is ... -
Performances and Flow Analysis in the Centrifugal Vortex Pump
(The American Society of Mechanical Engineers (ASME), 2013)Improvements to the characteristics of a centrifugal pump through the addition of a vortex rotor were investigated both experimentally and with computational fluid dynamic (CFD) analysis. The idea behind that improvement ... -
Experimental and Numerical Validation of a Wind Gust Facility
(The American Society of Mechanical Engineers (ASME), 2013)The study of a vehicle moving through a lateral wind gust has always been a difficult task due to the difficulties in granting the right similitude. The facility proposed by Ryan and Dominy has been one of the best options ... -
Multicondition Optimization and Experimental Measurements of a Double Blade Centrifugal Pump Impeller
(The American Society of Mechanical Engineers (ASME), 2013)In order to improve internal unsteady flow in a doubleblade centrifugal pump (DBCP), this study used major geometric parameters of the original design as the initial values, heads at three conditions (i.e., 80% design flow ... -
Stability of an Axial Thrust Self Balancing System
(The American Society of Mechanical Engineers (ASME), 2013)Rocket pumps are characterized by high speed and high delivery pressure. Therefore, balancing of axial thrust acting on the rotor assembly is one of the most important factors. To realize complete axial thrust balancing, ... -
Multiphysics Analysis of a Linear Control Solenoid Valve
(The American Society of Mechanical Engineers (ASME), 2013)A multiphysics analysis of a linear control solenoid valve coupled with a single degree of freedom (DOF) system is performed to analyze the spool behaviors of the valve. Axially symmetrical simulations are carried out to ... -
Imbedded Dual Number Automatic Differentiation for Computational Fluid Dynamics Sensitivity Analysis
(The American Society of Mechanical Engineers (ASME), 2013)Dual number automatic differentiation was applied to two computational fluid dynamics codes, one written specifically for this purpose and one “legacy†fortran code. Results for the simple case of a fully developed ... -
Vortex Generation in Low Speed Flow Over an Oscillating and Deforming Arc Airfoil
(The American Society of Mechanical Engineers (ASME), 2013)A computational investigation is carried out to study the effect of oscillations on vortex generation and vorticity flux for flow over a deforming arc airfoil. The flow is laminar, incompressible, and twodimensional at ... -
Hydromagnetic Fluid Flow and Heat Transfer at a Stretching Sheet With Fluid Particle Suspension and Variable Fluid Properties
(The American Society of Mechanical Engineers (ASME), 2013)In this paper, we investigate the influence of temperaturedependent fluid properties on the flow and heat transfer characteristics of an electrically conducting dusty fluid over a stretching sheet. Temperaturedependent ... -
Identification of the Cold Flow Perturbation Sources in a Dump Combustor With a Tapered Exit
(The American Society of Mechanical Engineers (ASME), 2013)This paper reports on the experimental investigation of the flow inside a low aspect ratio (length less than the reattachment length of separated flow) dump combustor with a tapered exit. The flow field in the combustor ... -
2012 Freeman Scholar Lecture: Computational Fluid Dynamics on Graphics Processing Units
(The American Society of Mechanical Engineers (ASME), 2013)This paper discusses the various issues of using graphics processing units (GPU) for computing fluid flows. GPUs, used primarily for processing graphics functions in a computer, are massively parallel multicore processors, ... -
Flow Feedback Method for Mitigating the Vortex Rope in Decelerated Swirling Flows
(The American Society of Mechanical Engineers (ASME), 2013)When reaction hydraulic turbines are operated far from the design operating regime, particularly at partial discharge, swirling flow instability is developed downstream of the runner, in the discharge cone, with a precessing ... -
Some Aspects of Gas-Solid Suspension Turbulence
(The American Society of Mechanical Engineers (ASME), 1971)An analysis is given for the apparent particle energy spectrum function in addition to the analysis of the effect of particles on the fluid energy spectrum in a turbulent gas-solid suspension ... -
Wave Height and Wave Velocity Measurements in the Vicinity of the Break Point in Laboratory Plunging Waves
(The American Society of Mechanical Engineers (ASME), 2013)Results are presented of laboratory experiments undertaken to study the dynamics of wave propagation and transformation within the surf zone. The study involved measuring the external flow characteristics of regular plunging ... -
The Use of Dual Number Automatic Differentiation With Sensitivity Analysis to Investigate Physical Models
(The American Society of Mechanical Engineers (ASME), 2013)Local sensitivities are explored using dualnumberautomaticdifferentiation (DNAD) across three mathematical models of physical systems that have increasing complexity. The models are: (1) a model for the approach of a sphere ... -
Shock Driven Particle Transport Off Smooth and Rough Surfaces
(The American Society of Mechanical Engineers (ASME), 2013)The behavior of respirable particles being swept off a surface by the passage of a shock wave presents an interesting but littlestudied problem. This problem has wideranging applications, from military to aerospace, and ...